Contents 
Page 
Foreword in 
Introduction 1 
Materials and Methods 3 
Horsley-Clarke technique 
Animals 
Procedure 
Histological techniques 
Variability in Position of Cerebral Structures 4 
Acknowledgments 6 
References 6 
Explanation of Plates 7 
Reference Planes 
Frontal Series 
Sagittal Series 
Nomenclature 
Labeling and Abbreviations 
Frontal Plates 8 
Sagittal Plates 73 
Appendix 89 
I. Purchase and Maintenance of Squirrel Monkey 
II. Additional References 
Abbreviations — Tables III and IV 90 
V 
